Significant changes are expected to arrive with Apple's fourth-generation iPhone SE, in terms of both design ... two major changes are expected – an Action button and a USB-C port.

Press and hold the side button and volume down button at the same time. On an iPhone 6s or earlier, including iPhone SE (1st generation): Press and hold both the Home button and the side button or ...

The iPhone SE is Apple's prior-generation low-cost iPhone ... and microphone while the bottom bezel includes a Touch ID Home button for fingerprint-based biometric authentication.